Mobile device holder



FIG. 1 is a front view of the mobile device holder shown in FIG. 1;

FIG. 2 is a rear view of the mobile device holder shown in FIG. 1;

FIG. 3 is a left side view of the mobile device holder shown in FIG. 1, the right side view being a mirror image of that which is shown; and,

FIG. 4 is a top view of the mobile device holder shown in FIG. 1, the bottom view being a mirror image of that which is shown. 

CLAIM The ornamental design for a mobile device holder, as shown and described. 